I-77 NB over Mercer Co. Route 7
FairMercer County, West Virginia · 0.0 Mi. N of CR 7 I/C · Structure no. 00000000028A203
- Built
- 1977
- 48 years old
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 175 ft
- 1 main span
- Daily traffic
- 28,500
- 2022 count
- Owner
- Toll Authority
- State Toll Authority
About this bridge
I-77 NB over Mercer Co. Route 7 is a steel continuous stringer/multi-beam or girder carrying I-77 NB over Mercer Co. Route 7 in Mercer County, West Virginia. It was built in 1977, so it is 48 years old, older than the West Virginia average of 44.7 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 28,500 vehicles a day, roughly 23% of them trucks, projected to reach 57,000 by 2042. The structure is 175 ft (53.2 m) long and 45 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-77 NB over Mercer Co. Route 7 built?
It was built in 1977, making it 48 years old in 2025.
What condition is I-77 NB over Mercer Co. Route 7 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.
How much traffic does I-77 NB over Mercer Co. Route 7 carry?
About 28,500 vehicles per day (2022 count), of which roughly 23% are trucks.
How long is I-77 NB over Mercer Co. Route 7?
The structure is 175 ft (53.2 m) long with a longest span of 76 ft (23.2 m) and a deck 45 ft wide.
Who owns I-77 NB over Mercer Co. Route 7?
It is owned by the State Toll Authority.